chg: [onlyoffice] rebuild config when new image is used

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

onlyoffice/hooks/init

@@ -13,9 +13,23 @@
 
 set -e
 
-if ! [ -e "$SERVICE_CONFIGSTORE/etc/onlyoffice/documentserver/local.json" ]; then
+image_id=$(service_base_image_id "$SERVICE_NAME") || {
+    err "couldn't get image id of $SERVICE_NAME."
+    exit 1
+}
+
+CONTROL_FILE="$SERVICE_CONFIGSTORE/etc/onlyoffice/.image_id"
+if [ "$(cat "$CONTROL_FILE")" != "$image_id" ]; then
     ## first time we need to extract configuration from image
+    rm -rf "$SERVICE_CONFIGSTORE/etc/onlyoffice"
     mkdir -p "$SERVICE_CONFIGSTORE/etc/onlyoffice"
     service_base_image_export_dir "$SERVICE_NAME" /etc/onlyoffice/documentserver "$SERVICE_CONFIGSTORE/etc/onlyoffice/"
-fi
-
+    printf "%s" "$image_id" > "$CONTROL_FILE"
+else
+    ## probably not needed to regenerate fonts
+    init-config-add "\
+$MASTER_BASE_SERVICE_NAME:
+  environment:
+    GENERATE_FONTS: \"false\"
+"
+fi